Filters: Tags: Potentiometric contour (X) > Extensions: Shapefile (X)

Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Extensions Raster (1) Types Downloadable (1) GeoTIFF (1) Map Service (1) OGC WFS Layer (1) OGC WMS Layer (1) Raster (1) Shapefile (1) Contacts U.S. Geological Survey - ScienceBase Drew A. Westerman Samantha R Wacaster Samantha R. Wacaster U.S. Geological Survey, SOUTHEAST REGION Categories Data (1) Tag Types Theme (1) Place (1) Tag Schemes None (1) View Results as: JSON ATOM CSV

Digitized Contours from Georeferenced Plate 1989 from "Louisiana ground-water map no. 3: Potentiometric surface, 1989, and water-level changes, 1980-89, of the Sparta aquifer in north-central Louisiana" The Sparta aquifer is the principal source of ground water in north-central Louisiana. In 1985, the aquifer was extensively pumped for public supply (25 Mgal/d) and industrial use (29 Mgal/d and 7 Mgal/d for 1989). More than 100 public supply systems, in 8 parishes, contain water from the Sparta aquifer. Large industrial pumpage from the Sparta aquifer began in 1922 at Bastrop (Sanford, 1973a, p. 60) and in about 1923 at West Monroe. Water levels in wells in the Sparta aquifer have been declining in these arease and in other parts of north-central Louisiana since the early 1920's, when industries began withdrawing large amounts of water. However, in Morehouse Parish the water levels in wells have been recovering... Categories: Data; Types: Downloadable, GeoTIFF, Map Service, OGC WFS Layer, OGC WMS Layer, Raster, Shapefile; Tags: Louisiana, Mississippi Embayment, Sparta aquifer, groundwater, potentiometric contour, All tags... potentiometric surface, recharge area, Fewer tags